When you need this
One Performance sub-check — Core Web Vitals (LCP, FID, CLS) — uses the Google PageSpeed Insights API. The API requires a free API key. Every other Mission Control check works without any third-party connection.
Getting a free key
- Visit Google PageSpeed Insights — Get Started.
- Sign in with a Google account and create a Google Cloud project (the wizard handles this).
- Copy the generated API key.
Saving the key in Mission Control
- Go to Mission Control → Settings.
- Paste the key into the PageSpeed API Key field.
- Click Save.
- From the dashboard, re-run the Core Web Vitals check.
Caching and quota
Results are cached for 6 hours to stay well inside the free quota. If you exceed the quota you will see the cached value until the next refresh, and the check card will surface a quota notice rather than a passing or failing state.
What is sent to Google
Only your homepage URL plus the API key. No store data, customer data, or order data leaves your site.